Closure for jars



Dec. 24, 1929. T. 1.. TALIAFYERRO 1,740,881

CLOSURE FOR JARS Filed Aug. 28. 1928 Patented Dec. 24, 1929 NET STATESTHOMAS L. TALIAFERRO, OF CHICAGO, ILLINOIS CLOSURE FOR JARS Applicationfiled August 28, 1928.

The, invention relates to new and useful improvements in a closure forjars, and more particularly to a closure for a jar having a smooth outerwall with which the closure has frictional gripping engagement.

An object of the invention is to provide a closure of the above typeincluding a cover portion and a securing band which frictionally gripsthe side wall of the j arfor retaining the cover on the jar, whereinsaid band is divided and the ends thereof are firmly but detachablysecured together so that the closure may be readily removed from the jarwithout the use. of special tools.

A further object of the invention is to provide a closure of the abovetype wherein the ends of the band are secured together by a reinforcedholding lug and a reinforced opening tongue.

A still further object of the invention is to provide a closure of theabove type wherein said securing band is formed with inwardly extendingspaced ribs having the inner faces thereof spaced diametrically acrossthe band a slightly less distance than the outer diameter of thestandard jar with which said closure is to be used, when the band isexpanded to the maximum diameter permitted y the securing means whichjoins the ends thereof.

These and other objects will in part be obvious and will in part behereinafter more fully disclosed.

In the drawings which show by way of illustration one embodiment of theinvention:

Figure 1 is a top plan view of a portion of a jar having the improvedclosure applied thereto.

Fig. 2 is a view partly in side elevation and partly in section of thesame.

Fig. 3 is an enlarged section on the line 33 of Fig. 2.

The invention is directed to a closure for jars, and more particularlyto a jar having a smooth outer wall which is substantially vertical. Theclosure includes a cover portion having a channel adjacent the outeredge thereof in which a sealing composition is placed, forming a gasketwhich adheres to the cover portion and forming a unit struc- Serial No.302,619.

ture therewith. The sealing gasket engage the lip of the when the coveris placed thereon. The closure also includes a holdin band which isdivided and the ends of the band are secured together by a reinforcedlocking lug passing through a slot in a reinforced opening tongue. Thelocking lug is folded back against the face of the tongue so that theends of the band are firmly joined and held to a maximum diameter. Thisholding band is provided with a port-ion which overlies the cover, and adepending skirt or flange. After the ends are joined the cover is placedin the formed band and then the skirt or flange of the band is providedwith inwardly projecting ribs. These ribs are located immediately belowthe outer edge of the cover portions and SGIXQ to hold the coverportions in the band so that they may be handled as a unit structurewhen being applied to the jar.

The lower edge of the band is also turned preferably inwardly forreinforcing the lower edge of the band and concealin the raw edge of themetal. This portion or the band may be turned outwardly for reinforcingthe edge.

Referring more in detail to the drawings, the improved closure is shownas applied to a jar 1. The outer wall of the ar adjacent the upper endthereof is substantially vertical, as indicated at 1. The closureincludes a top portion 2 which is centrally depressed and otherwiseshaped so as to form a channel portion 3. On the under face of thechannel portion 3 there is a sealing material which is preferablyapplied so as to form a sealing gasket of substantial thickness. lVhenthe cover is placed on the jar this sealing material engages the lip ofthe jar and forms a sufficient sealing means for the jar.

The closure also includes a holding band 5 which is provided with aportion 6 adapted to overlie the cover portion of the closure. It isalso provided with a depending skirt or flange 7. The band is divided.The dividing line across the horizontal portion of the band is indicatedat 8 in Fig. 1 of the drawings, and the line of division through theskirt or flange is indicated at 9. Formed integral with one end of thisband is an opening tongue 10 reinforced about the edge thereof, asindicated at 11. This tongue 10 is provided with an opening therethroughwhich is indicated in dotted lines at 10 of the drawings. The other endportion of the band is provided with a holding lug 13. This holding lugis provided with a central rib 13 which reinforces the holding lug andstrengthens the same. he holding lug is passed through the slot 10 andis then folded down against the opening tongue in the well known way.This forms a very rigid means for joining the ends of the band, and theband can be very readily opened at any time by raising the tongue 10.This can be accomplished .without the use of any special tools.

The band is expanded to the maximum diameter permitted by the joinedends, and while thus expanded the skirt or flange 7 is indented so as toprovide holding ribs 17. The band is held expanded preferably by anexpansible chuck or inner die, and the indentations are forced inwardlyso that when the band is thus held at its maximum expansion permittedby'the holding means, the distance from the inner face of one formedinuentation diametrically across to the opposed formed indentation isjust slightly less than the diameter of the outer wall of the standard-'jarwith which the closure is intended to be used. Thus it is that whenthe closure is placed on the jar, the band, while more or less looselyjoined at its meeting ends, will be expanded to its maximum diameterwhere it will be firmly held and then the indented portions will beforced onto the jar and firmly grip the outer wall thereof. It is wellunderstood thatwhere indentations are used forsecuringa closure to a jarthrough the frictional grip of the indentations on the wall of the jar,when the grip is a very firm grip, considerable difficulty isexperienced in removing the closure. y the present construction it willbe apparent, however, that the indentations may be so proportioned thatthe jar will be very firmly gripped by the'holding band and at the sametime the band may be readily removed by lifting the locking tongue andthus separating the ends of the band.

The lower edge of the skirt is preferably turned inwardly as indicatedat 16 for the purpose of reinforcing the skirt and also for the purposeof concealing the raw edge of the metal. It will be understood, however,

that this skirt may be rolled outwardly at the lower edge for rinforcing purposes.

' The essential feature of the invention resides in the provision of aband wherein the ends thereof are detachably but firmly secured togetherwith the indented portions formed between the upper and lower edges ofthe band, which indented portions firmly grip the outer wall of the arfor holding the-band thereon, and these indentations also serve to holdthe band and the cover portion assembled as a unit for the handling ofthe parts during the applying of the closure to the jar.

As noted above, the indentations in the skirt of the holding band securethe top portions to the band, but the indentations are so positionedthat there is some freedom of movement of the top portion relative tothe band. This is quite essential as it is desirable, when applying theclosure to a container having a boiling temperature, to permit the topportion to move into sealing contact with the jar after the productcools so that the top portion will be held to the jar by the vacuunicreated therein. The band holds the top portion on the jar and preventsit being separated therefrom until the band is removed, but the topportion will be drawn into tight contact with the jar without requiringany further movement of the holding band which grips the side wall ofthe jar.

lVhile the indentations 17 are shown in the drawings as of considerablelength, it will be obvious, of course, that these may be otherwiseformed. It is desirable, however, that the gripping surface shallconsist of spaced projections as a better grippinghold is obtained uponthe jar wall.

It will be obvious that minor changes in the details of construction andarrangements of parts may be made without departing from the spirit ofthe invention as set forth in the appended claims.

WVhat I claim as new and desire to secure by Letters Patent is: l

1. A closure for jaws having an outer' smooth substantially verticalwall comprisinga cover portion having a sealing gasket attached thereto,a divided holding band having its ends firmly secured together by aneasy opening holding means, said holding band having a horizontalportion overlying the cover and a depending skirt, said depending skirtbeing provided with spaced inwardly projecting portions for securing thecover to the holding band and for gripping the vertical wall of the jarfor securing the closure to the jar;

2. A closure for jars having an outer smooth substantially vertical wallcomprising a cover portion having a sealing gasket attached thereto, adivided holding band having its ends firmly secured together by areinforced holding lug and an opening tongue, said holding band having ahorizontal portion overlying the cover and a depending skirt, saiddepending skirt being provided with spaced inwardly projecting portionsfor securing the cover to the holding band and for gripping the verticalwall of the jar for securing the closure to the jar.

3. A closure for jars having an outer smooth substantially vertical wallcomprising a cover portion havinga sealing. gasket attached thereto, adivided holding band having the ends thereof firmly secured together bya reinforced holding lug and an opening tongue, said holding band havinga horizontal portion overlying the cover and a depending skirt saiddepending skirt being provided with spaced inwardly projecting portionsfor securing the cover to the holding band and for gripping the verticalWall of the jar for securing the closure to the jar, the distancebetween the inner face of opposed projecting portions being slightlyless than the maximum diameter of the jar to Which the closure is to beapplied when said holding band is of the maximum diameter permitted bythe holding lug securing the ends together.

In testimony whereof, I aiiiX my signature.

THOMAS L. TALIAFERRO.

